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i E: I I 4 . Soil borings #1 , 2, 3, & 4, (refer to PLATE VI , ) will be taken as close to the capillary fringe- as possible in ,order to obtain a soil. sample. If field evidence warrants, a water sample may be taken by ;use of a hydropunch or similar type device. After sampling, ',each soil boring will be grouted from bottom to the surface with a bentonite/cement slurry as directed by a r representative of the County EHD. 5 . Monitoringwells #1 , 2, & 3 will be advanced in thetsame manner as the soil borings; samples taken every 5' fromf5' bgl to the capillary fringe. After verifying water depth, each soil t boring will be advanced a minimum of 10 feet below the water table. 6 . Upon reaching the desired depth, 2" blank & slotted, flush screw-thread PVG casing, fitted with a threaded bottorii cap, will be run in the hole. When bottoms is reached, the casing- will be pulled up slightly to avoid the possibility of bucklinglor' laying against the side of the hole. The annular space between casing and augers will ;be filled with clean, graded, #2 1/2 or1 #3 sand. The casing willibe constantly vibrated during sand placement to eliminate bridging and voids. Fill depths will be moriitored constantly as the auger flights are slowly withdrawn. . When sand fill has stabilized, (a minimum of 2' above the top of the slots , ) a bentonite seal will be placed, and the annular space filled to the surface with a cement/bentonite slurry. . Refer to PLATE VTI for a :'schematic of each well completion. F 7 . Each well will be fitted with a precast Christy-type box, with the casing extending into the box far enough to allow placement of a locking cover. The casing & box will bei thoroughly grouted into place to ensure the integrity of the seal . 8 . Within 18-24 hours after completion, each well will [be' developed by use of a hard rubber cup or other suitabl'e� device. Purge fluids will be placed in suitably marked sealed containers & stored on location pending results of the laboratory analyzes . 9 . Preserved soil samples will be transported under chain of custody to a State Certified laboratory with instructions to analyze for BTEX (EPA 8020 , ) & TPH-G (EPA 8015M, ) using;."current County approved detection limits . 9 . As soon as practical after development, each well will be . purged, water levels determined, and samples taken per standard WJH field protocol; a copy of which is attached as EXHIBIT D. The properly preserved water samples will be transported under ' 5 ' i I i